The High-Temperature Heat Pump Symposium 2026, held on 21–22 January 2026 at Bella Center Copenhagen, concluded that high-temperature heat pumps are no longer a niche technology but an emerging cornerstone of industrial decarbonisation. The event drew more than 530 participants from research institutions, industry, policy and technology development, alongside more than 35 industrial exhibitors — a scale that reflects commercial momentum rather than research curiosity.
From feasibility to implementation
The clearest signal from the programme was a change of subject. Building on the 2024 edition, the 2026 symposium moved from technological feasibility to implementation, scalability and sector-wide integration. Keynote sessions addressed the future of industrial heat and the role of heat pumps in meeting climate targets, with speakers noting that electrification of industrial process heat is accelerating under a combination of policy frameworks, market drivers and technical innovation.
Technical sessions covered advances in compressors, heat exchangers and system architectures, including oil-free centrifugal compressors, advanced ammonia systems, reverse Brayton cycles and novel heat exchanger designs. Large- and medium-scale industrial applications received particular emphasis: steam generation, waste heat recovery and integration with thermal storage. Case studies came from pulp and paper, food processing, chemicals and brewing, while poster sessions covered refrigerant innovation, system integration, digitalisation and techno-economic assessment.
Steam above 150 °C, and the sectors that need it
The second day turned to real-world implementation, with dedicated sessions on drying processes, steam generation and process integration. Several presentations demonstrated heat pumps enabling steam production above 150 °C, which is the threshold that opens energy-intensive industries to electrification; case studies from chemical, food, dairy and paper producers addressed both technical feasibility and economics. Closing workshops focused on textiles, chemicals, and pulp and paper, underlining that solutions remain sector-specific.
According to the IEA Heat Pumping Technologies report on the symposium, technical and economic barriers remain, but the growing number of demonstration projects and commercial installations indicates a new phase of maturity. The organisers' summary is that the question is no longer whether high-temperature heat pumps will form part of the industrial energy transition, but how quickly they can be scaled.
The exergy view
A heat pump is the only industrial heat technology that respects the second law rather than fighting it. Combustion converts a high-exergy fuel into heat at a temperature the process rarely needs, destroying much of the fuel's work potential in the flame itself. A heat pump instead uses a modest input of work to lift heat that already exists — from ambient sources or from a rejected process stream — to a useful temperature, and can therefore deliver several units of heat per unit of electricity. The critical variable is the temperature lift: exergy demand rises with the gap between source and sink, so a heat pump paired with recovered waste heat performs far better than one starting from ambient. Reaching steam above 150 °C matters because it extends this advantage into processes previously reserved for fuel.
